3c7d6fcce7
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_error.c: Handles error messages from the other end.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "common.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "send.h"
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#include "msg.h"
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#include "modules.h"
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#include "logger.h"
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#include "s_conf.h"
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static const char error_desc[] =
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"Provides the ERROR command for clients and servers";
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static void m_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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static void ms_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message error_msgtab = {
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"ERROR", 0, 0, 0, 0,
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{{m_error, 0}, mg_ignore, mg_ignore, {ms_error, 0}, mg_ignore, mg_ignore}
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};
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mapi_clist_av1 error_clist[] = {
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&error_msgtab, NULL
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};
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DECLARE_MODULE_AV2(error, NULL, NULL, error_clist, NULL, NULL, NULL, NULL, error_desc);
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/* Determine whether an ERROR message is safe to show (no IP address in it) */
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static bool
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is_safe_error(const char *message)
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{
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char prefix2[100];
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const char *p;
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if (!strncmp(message, "Closing Link: 127.0.0.1 (", 25))
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return true;
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snprintf(prefix2, sizeof prefix2,
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"Closing Link: 127.0.0.1 %s (", me.name);
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if (!strncmp(message, prefix2, strlen(prefix2)))
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return true;
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if (!strncmp(message, "Restart by ", 11))
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return true;
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if (!strncmp(message, "Terminated by ", 14))
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return true;
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if (!ircncmp(message, "Closing Link", 12))
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return false;
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if (strchr(message, '['))
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return false;
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p = strchr(message, '.');
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if (p != NULL && p[1] != '\0')
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return false;
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if (strchr(message, ':'))
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return false;
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return true;
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}
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/*
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* Note: At least at protocol level ERROR has only one parameter,
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* although this is called internally from other functions
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* --msa
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*
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* parv[*] = parameters
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*/
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static void
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m_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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const char *para;
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int hideit = ConfigFileEntry.hide_error_messages;
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para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
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if (IsAnyServer(client_p))
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{
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ilog(L_SERVER, "Received ERROR message from %s: %s",
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log_client_name(source_p, SHOW_IP), para);
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}
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if(is_safe_error(para))
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hideit = 0;
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if(IsAnyServer(client_p))
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{
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if (hideit < 2)
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
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"ERROR :from %s -- %s",
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client_p->name, para);
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if (hideit > 0)
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sendto_realops_snomask(SNO_GENERAL, (hideit == 1 ? L_OPER : L_ALL) | (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
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"ERROR :from %s -- <hidden>",
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client_p->name);
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}
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exit_client(client_p, source_p, source_p, "ERROR");
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}
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static void
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ms_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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const char *para;
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int hideit = ConfigFileEntry.hide_error_messages;
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para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
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ilog(L_SERVER, "Received ERROR message from %s: %s",
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log_client_name(source_p, SHOW_IP), para);
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if(is_safe_error(para))
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hideit = 0;
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if(hideit == 2)
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return;
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if(client_p == source_p)
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{
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s -- %s",
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client_p->name, para);
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}
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else
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{
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s via %s -- %s",
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source_p->name, client_p->name, para);
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}
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}
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